JPS5814968A - Device for covering explosion - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for applying coatings using hot spray techniques, and in particular to an apparatus for explosive coatings. Wood inventions can be most advantageously used in the aircraft industry, spacecraft industry, machine assembly industry, shipbuilding industry, etc.

Commercial use of these devices began when
Although relatively recent, it has already found use in the field of mechanical assembly. This kind of outfit L
In developing IEs (see, e.g., U.S. Pat. No. 3, gg'l, '975), devices that are reliable for the qualitative metering of the coating material-gas mixture and reliable for the ignition of the mixture. Most attention has been paid to However, over time, it became necessary to solve some problems with the drive system for the relative movement of the equipment and the workpiece, and these loadings became more and more commercially available for coating. At the beginning of its commercial use, it was believed that conventional manipulators used in paving equipment could be easily adapted to serve as such drives.

A device was developed that included a main body equipped with a discharge device and topped with nine barrels. The barrel is 1. Communicated with powder patch meter. The apparatus also includes a drive adapted to move the apparatus and the workpiece relative to each other (Seminov AR.C.).

Detonationnye pokrytiya
i ih primeniya.

"NIIMASH', -EX/7, / 977
, p. 31I). The drive installed in this device is configured in the form of an electric motor mounted on the main body and having an output shaft. The output shaft is movably coupled to a face plate for holding the workpiece. During operation of the device,
The faceplate is rotated by the electric motor through a specified angle after each operation of the discharge device, with the workpiece fixed therein.

Despite the fact that the above-mentioned device appears to be simple in construction and reliable in operation, it has not found wide application due to various reasons, and thus in some cases demonstrated that the thickness of the coating obtained using this charge was not uniform. This drawback is inevitable for devices that utilize explosions! k(mix-f
ir@s) K Yoshi is triggered. Below, 'misfire (m
isflre)' because it means the case when the mixture of coating material and explosive gas is fed into the barrel and the discharge device is activated, no explosive action takes place and therefore no coating process takes place. used for. Misfires can occur for various reasons, the most frequent of which are: The discharge device is filled with inert gas as a result of cleaning the supply line with inert gas; clogging with powder; and corrosive wear of the electrodes of the discharge device.

Rotating the workpiece being coated through a specified angle within the above-described apparatus is done regardless of whether coating is performed at a previous location on the workpiece. The device is g per second
It should be noted in this connection that, since operating at a shot rate, it is not possible to eliminate this drawback by visually controlling the process.

It is an object of the invention to provide a device for explosive coating, in which coating takes place at each location and the positioning drive is activated only after death, thereby improving the quality of the coating formed.

The object of the present invention is to include a body supporting a barrel with a discharge device, a two-powder patch meter, and a gas mixing device, the powder patch meter and the gas mixing device being compatible with the above-mentioned example. In an apparatus for explosive coating comprising a positioning drive in communication with and adapted to move the apparatus and the workpiece relative to each other and having an output shaft, in accordance with the present invention the positioning drive comprises a barrel. configured in the form of a spring-loaded flap mounted on a shaft at the outlet of the barrel, said flag having a hole opposite the outlet of the barrel, said shaft being connected to said output shaft via a one-way clutch. This is achieved by means of an explosive coating device characterized in that it is coupled.

Under the action of the detonation wave, the flannoffl pivots through a given angle, thereby rotating the shaft on which it is attached, but in this case, while the output shaft is at rest.
Coating material is forced through the holes towards the workpiece being coated. Under the action of the spring, the shaft is pushed back to its initial position, activating the one-way clutch, thereby rotating the output shaft, which moves the device or the workpiece. The positioning drive which changes their relative position by a length of l pitches thus makes use of the energy of the detonation wave, so that in the event of a misfire, its operation cannot occur. At the same time, this ensures uniform coverage even when misfires occur.

If the coating is carried out on relatively small and round workpieces, such as shafts, rods, sleeves, etc., it is advantageous to connect the output shaft with the shaft of the face plate via a gear.

In this case #'i, each shot's twist causes the flag to rotate to a new position with the face plate fixed above it while the flag is being forced to its initial position.

When coating large, heavy workpieces, a preferred embodiment of the invention comprises one in which the apparatus of the invention is mounted on wheels, at least one of which is movably coupled to the output shaft. It is something that exists. In this case, when the 7 lap is driven by the return spring k to its initial position, it displaces the device by a length of 7 pitches with respect to the workpiece remaining in the fixed position.

Said flap is constructed in the form of a semi-cylindrical pallet mounted on a rotatable lever, and these flaps are
- Fi, the two baffles are interconnected by a resilient member and are arranged so that, when brought together, they form a passage coaxial with and opposite the bore of the barrel, said passage substantially It is also convenient to have a red light in the hole in the Bragg. Such an arrangement makes it possible to best utilize the energy of the detonation wave.

Preferably, the rotatable lenos 4- are movably coupled therebetween via a transmission device, which means that /? This makes it possible to make the dynamic pressure of the explosion wave on the fuffle advantageous and to increase the torque of the output shaft.

Embodiments of the present invention will be described in more detail below. The device for explosive coating comprises a body l (FIG. 1) on which is mounted a barrel 2 with a discharge device 8, a powder patch meter 4 and a gas mixing device 5.

Powder measuring device 4 and gas mixing device #5 are 5 branch pipes 6
It communicates with /+rel 2 via and 7. child/
The apparatus also includes a positioning drive 8 adapted to move the apparatus and the workpiece 9 relative to each other and mounted on the main body l. The positioning drive 8 has an output axis lO. and is configured according to the invention in the form of a spring-loaded flange f11 mounted at the outlet of the barrel 2. Flag 11 is fixed on shaft 12 and held in its initial position by spring IB. End stoppers 14 and 15 for determining the end position of the flag 11 are mounted on both sides of the flag 11 on one body l. The spring 18 holds the fluff "ll" against the armpit 15. A hole is provided in the flap "ll" facing the outlet of the barrel 2, and behind this hole 16 a workpiece 9 is placed. is positioned.The positioning drive device 8 is.

It also has a one-way clutch 17, and this one-way clutch 17
The shaft 12 is connected to the output shaft IO via. The one-way clutch 17 can be configured in various other ways, provided that the one-way clutch 17 is moved from the shaft 12 to the output shaft only when the seven-wheel drive 11 is driven to its initial position, i.e. The condition is that rotational motion can be transmitted to lO.

To move either the workpiece or the device, the output shaft l
It is quite obvious that O can be used. Modifications to the device shown in FIG. 7 - In an embodiment, the main body of the device
K on face plate 18 with shaft 19 mounted on top, workpiece 9
is fixed. The output shaft IO is movably connected to the shaft 19 via a transmission 20 .

The variant of the device shown in the first figure is intended for coating large and heavy workpieces, for example parts of the fuselage of a ship or the skin of an aircraft. Body l is wheel 21
is mounted on top. According to the invention, at least seven of these wheels 21 are movably connected to the output shaft IO. In this modification, axis IB is
One-way clutch 17 via a pair of bevel pinions 2B
is combined with The output shaft lO is coupled to the wheel 21 via a flexible member 28. As the flexible member 28, a cable, chain, belt (preferably a V-shaped belt) can be used.

According to a modification of the device shown in FIG.
l is constructed in the form of two semi-cylindrical baffles 24 and 25 (see also Figure d). The semi-cylindrical parafuges 24 and 25, when brought together, form a passage coaxial with the hole in the barrel 2 and substantially the hole 16 provided in the flag 11.
It is. Buckles 24 and 25 are rotatable levers 26
and 27, respectively, and these levers are interconnected via an elastic member 28, which achieves the same function as the spring 18 in the variant shown in the first example. The shaft 12 of the lever 27 is therefore mounted so as to transmit rotational movement to the shaft IO.

In a preferred embodiment of the invention (FIG. S), rotatable levers 26 and 27 are movably coupled to each other, such that shafts 12 and 29 are connected to intermeshed sector gears 80 and 81. Being prepared will accomplish this.

A metered amount of powder coating material to be applied to the workpiece 9 is fed from the patch meter 4 through the branch pipe 6 into the barrel 2, and the gas mixture is also fed from the gas mixing device [5] through the branch pipe 7. When fed into the barrel 2, the discharge device 8 is actuated to ignite the gas mixture within said barrel 2. As a result of the explosion, the explosion products are powder coated i
It moves toward the work piece 9 together with the work piece 9. When the front of the detonation wave reaches flag IIK, flap 1lFi is pushed towards stut/arm-14 under the action of the gas flow.

The output shaft 10 remains stopped. The flow of gas carrying the powder coating material passes through the holes 16 and impinges on the surface of the workpiece 90, thereby depositing particles thereon and forming a coating thereon. Thereafter, the flag 11 rotates under the action of the spring 18 to its initial position, i.e.
Take the negative end portion at -15. While rotating under the action of the spring IB, the flag 11 rotates the shaft 12, which imparts a rotational force to the output shaft lO via the one-way clutch 17; 20 to rotate the shaft 19. While rotating, the shaft 19 rotates the face plate 18 to which the work piece 9 is fixed by a length of l pitch,
The next successive part of the workpiece 9 is therefore positioned opposite the barrel 2. Similarly, one positioning drive is activated during the next successive shot.

The device shown in FIG. The pressure is transmitted via the force coupling 2B to the wheel 21, which forces the entire device to move along the workpiece 9.

In FIG. 3, the variation of the device shown therein operates in substantially the same way as the variation described above. During an explosion, a portion of the energy of the blast wave is received by baffles 24 and 25, so that the baffles
The rotatable lever 2 is moved towards the
Under the action of an elastic member 1 which rotates B and 27 accordingly (the position into which they are moved is indicated by a dash-dotted line), when these levers are moving in the opposite direction, the levers Rotate axes 12 and 29. From axis 12,
The rotational motion is transmitted to the output shaft IO via the one-way clutch 17.

In a preferred embodiment of this variation, the rotary movements of these levers are rendered synchronized by sector gears 80 and 91 (FIG. S), which ensures the most efficient use of the energy received by baffles 24 and 24. It enables various uses.

3 and 100 revolutions of the output shaft in the variant shown in FIG. 3 can be used for moving the face plate (FIG. 1) or for driving the wheel 21 (FIG. 1). .

The invention can be embodied in a variety of different ways within the scope of the claims.

[Brief explanation of the drawing]

FIG. 1 shows an apparatus for explosive coating according to the invention. FIG. 2 shows the automatic modification aspect of the device. The third factor shows a modification of the device of the invention with a flag configured in the form of a semi-cylindrical baffle. The second diagram is a cross-sectional view of the baffle along the line EV-■ in FIG. 3. Figure S shows a movable joint that can rotate nine times. l...Body 2...Barrel 8...Discharge device 4...Powder-f Tsuchi scale 5・－・・・
...Gas mixing device 8...Positioning drive electric manufacturing IO...
...Output shaft 11... Flag 12...7 Lug shaft 16... Hole in the flag 17...
...One-way clutch 18...Face plate 19...Face plate shaft 20...Gear train 21... ... Wheel 24.25 ... Shade ... Semi-cylindrical shape, 9-wheel full 26.2
7...... Rotatable lever 28...
...Elastic member 82 ...... Transmission device nH Continued from page 1 0 Inventor Anatoly Ivanovich Zvelev Soviet Union Kiev Ulitsa Sverdlova 13 Cavy 21 0 shots Author: Sergei Anatolyevich Tiklevnikov, Soviet Union, Kyiv Ulissa, Metrostroevskaya 1-35 Kev. 20 Inventor Alla Lukinichina Polisovya Soviet Union Kiev Ulitsa Dobuchhotova 14 K.

Claims (1)

[Claims] 1. An explosive coating device comprising a main body equipped with a discharge device 8 and supporting a nine-barrel 2, a powder patch meter 4, and a gas mixing device 5, the powder patch meter and a gas mixing device in communication with said grille 2, and a drive device 1'8 adapted to move said device and the workpiece relative to each other and having an output shaft IO. In the device, a drive device 8 is connected to the shaft 1 at the outlet of the barrel 2.
2, said flag 11 has a hole 16 facing the outlet of the barrel 2, and said shaft 12 is connected to the output shaft 1 via a one-way clutch 17.
1. A device for explosive coating, characterized in that it is combined with 0. 2. It has a face plate 18 for fixing the work piece, and an output shaft l.
2. Device for explosive coating according to claim 1, characterized in that O is connected to the shaft 19 of the face plate 18 via a gear train 20. 3. The main body l is mounted on wheels 21, at least one of which is movably connected to the output shaft 10, according to claim 1. equipment. 4. Said 72 claws 11 are constructed in the form of semi-cylindrical baffles 24 and 25 mounted on rotatable levers 26 and 27 connected to each other via elastic members 28, said baffles are arranged so as to form a passageway opposite and coaxial with the bore of the barrel 2 when brought together, said passageway being substantially 7 x 7'll of said bore 16; An apparatus as claimed in claim 1 characterized in: 5. Device according to claim 1, characterized in that the levers 24 and 25 are movably connected between them with the aid of a transmission.